Guys, Do you think it's valuable to add real world use cases to capability matrix <http://beam.incubator.apache.org/capability-matrix/> ? Then, we could know why a particular capability is needed and which should be prioritized for runner implementations. I found some examples in the Dataflow paper (3.3) <http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43864.pdf> and another reference is http://www.vldb.org/pvldb/vol8/p2040-Kejariwal.pdf.
Thanks, Manu Zhang
